89
Pump Head Maintenance (Quaternary and Flexible Pumps)
3
Assembling the Pump Head
7
Close the tool by closing the three screws at the
connection ring.
Damage to the pump head
Using a wrong torque will damage the pump head.
➔ For handling the torque wrench, setting and applying
the right torque, consult the manual of your torque
wrench.
8 Using a torque key, which is included to the 1290 Infinity
Service Kit p/n 5067-4699, set 5 Nm and fix the central
alignment screw.
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